ATSHA204A-MAHDA-T The Microchip Technology ATSHA204A-MAHDA-T is an authentication chip designed for secure symmetric authentication. It utilizes the SHA-256 hash algorithm and offers a 256-bit key length.
Mfr Part #:

ATSHA204A-MAHDA-T

Available from 5 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology ATSHA204A-MAHDA-T is an authentication chip designed for secure symmetric authentication. It utilizes the SHA-256 hash algorithm and offers a 256-bit key length.
Total Stock: 9,354 pcs
$ Price Range: $0.75

ATSHA204A-MAHDA-T Available from 5 distributors

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ATSHA204A-MAHDA-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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EEPROM Size
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ATSHA204A-MAHDA-T Description

Short technical summary and product information.

The Microchip Technology ATSHA204A-MAHDA-T is a specialized integrated circuit designed for secure authentication and encryption applications. It features hardware-based key storage and supports secure symmetric authentication operations for both host and client devices.

 

Key technical specifications include the superior SHA-256 hash algorithm with MAC and HMAC options, a 256-bit key length with storage for up to 16 keys, and a guaranteed unique 72-bit serial number. The device also incorporates an internal high-quality Random Number Generator (RNG).

 

For data storage, it offers 4.5 kb of EEPROM for keys and data, along with 512 bits of One-Time Programmable (OTP) memory for fixed information. Communication interfaces include a UART-compatible High-Speed, Single-Wire Interface and a 1 MHz I2C interface. The operating supply voltage ranges from 2.0V to 5.5V, with a communications voltage range of 1.8V to 5.5V. It boasts a low sleep current of less than 150 nA.

 

This authentication chip is packaged in an 8-UDFN (2x3) surface-mount package, making it suitable for applications in networking and communications. Its features support secure download and boot, ecosystem control, and anti-cloning functionalities.

ATSHA204A-MAHDA-T Quick Information

Product Type: Authentication Chip
Series: CryptoAuthentication
Canonical Name: ATSHA204A-MAHDA-T Authentication Chip
Subcategory: Authentication Chip

ATSHA204A-MAHDA-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATSHA204A-MAHDA-T Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

ATSHA204A-MAHDA-T Features

  • Protected hardware-based key storage.
  • Superior SHA-256 hash algorithm.
  • 256-bit key length, storage for 16 keys.
  • UART and 1 MHz I2C interfaces.
  • 4.5 kb EEPROM for keys and data.

ATSHA204A-MAHDA-T Applications

  • Secure download and boot.
  • Ecosystem control.
  • Anti-cloning.
  • Message security.

ATSHA204A-MAHDA-T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the ATSHA204A-MAHDA-T?

The supply voltage range is 2.0V to 5.5V.

What communication interfaces does the ATSHA204A-MAHDA-T support?

It supports a UART-compatible High-Speed, Single-Wire Interface and a 1 MHz I2C interface.

What is the EEPROM size for keys and data on this chip?

The chip has 4.5 kb of EEPROM for keys and data.

What is the key length supported by the ATSHA204A-MAHDA-T?

It supports a 256-bit key length.

What package type is the ATSHA204A-MAHDA-T available in?

It is available in an 8-UFDFN Exposed Pad package.

What is the RoHS status of the ATSHA204A-MAHDA-T?

It is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this component?

The Moisture Sensitivity Level is 1 Unlimited.

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